This is the best summary I could come up with:

Sadiq Khan has hailed what he said was remarkable progress in improving London’s air quality under his tenure as mayor, after a study showed roadside pollutant levels falling faster in the city than elsewhere in the UK.

The expansion of the clean air zone, which requires older and more polluting vehicles to pay a £12.50 daily charge, was fiercely opposed by the Tory central government, and even the Labour leader, Keir Starmer, asked Khan to reconsider the move.

The Labour mayor is keen to push his environmental credentials before he stands for re-election in May seeking a third term, and amid criticism that his flagship infrastructure project, the Silvertown road tunnel under the Thames, could worsen air quality.

Coinciding with the report, Khan’s office has announced additional clean air schemes, noting that pollution levels in the city are still forecast to exceed World Health Organization guidelines even by 2030.

Clean air matters for so many reasons – helping to increase children’s life expectancy, reduce hospital admissions for asthma and serious lung conditions, and enable people to lead longer, healthier lives.”

Henry Gregg from Asthma and Lung UK said: “Despite some improvements to the public transport network in London, more action is still needed in many toxic air hotspots, especially in outer boroughs.”

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